Recent turmoil in the banking sector has shown that Bitcoin (BTC) and Ether (ETH) can withstand a shaky economy, outperform other asset classes and function like gold, says ARK Invest chief executive Cathie Wood — though one long-time investor still isn’t sold.

Not all share Wood’s sentiment. Ray Dalio, the founder of Bridgewater Associates, the world’s largest hedge fund by assets under management, explained in an April 12 interview that Bitcoin cannot serve as an “effective currency” because it is too volatile and central banks won’t adopt it.